"recognize the days after. In some Islamic countries, the week begins on Sunday and ends on Saturday, just like the Jewish week and the week in some Christian countries. The week begins on Saturday and ends on Friday in most other Islamic countries, such as Saudi Arabia, Somalia, and Iran. Friday is also the day of rest in the Bahá'í Faith. In some Malaysian states, Friday is the first week-end day, with Saturday the second, to allow Muslims to perform their religious obligations on Friday. Sunday is the first working day of the week for governmental organisations. Jewish Sabbath begins"
"are on the 13th. The 13th day of the month is slightly more likely to be a Friday than any other day of the week. On average, there is a Friday the 13th once every 212.35 days, whereas Thursday the 13th occurs only once every 213.59 days. In the 2010s there were three Friday the 13ths in 2012 and 2015, and two in 2013, 2017 and 2018. There will also be two in 2019 and 2020. In the 2020s, there will be three F13's in 2026, and two in 2020, 2023, 2024, and 2029. The rest of years have at"
"the last two years, Dutch insurers received reports of an average 7,800 traffic accidents each Friday; but the average figure when the 13th fell on a Friday was just 7,500."" In years which begin on the same day of the week and are of the same type (that is, whether they are a common year or leap year), Friday the 13th occurs in the same months. This sequence, given here for 1900–2099, follows a 28-year cycle from 1 March 1900 to 28 February 2100. The months with a Friday the 13th are determined by the Dominical letter (G, F, GF,"
"one Friday the 13th; The only Friday the 13th in this leap year occurs in October. Common years starting on Sunday share this characteristic, but also have another in January. From August of the year that precedes this year until October in this type of year is also the longest period (14 months) that occurs without a Friday the 13th. Common years starting on Tuesday share this characteristic, from July of the year that precedes it to September in that type of year. There are two other ways this 14 month interval can be formed, one involving a common year"
"Friday the 13th Friday the 13th is considered an unlucky day in Western superstition. It occurs when the 13th day of the month in the Gregorian calendar falls on a Friday, which happens at least once every year but can occur up to three times in the same year,for example in 2015, on 13 Feb, 13 March and 13 October. In 2017, it occurred twice, on 13 January and 13 October. In 2018, it also occurred twice, on 13 April and 13 July. There will be two Friday the 13ths every year until 2020; 2021 and 2022 will have just"
"each month consists of exactly four weeks, the first day of each month and every seventh day after that for the rest of the month is deemed to be a Friday, the second day of each month and every seventh day after that for the rest of the month is deemed to be a Saturday, and so on. Therefore, each month begins on a Friday and ends on a Thursday. This causes all months to look like this: The 13 months and extra days occur on the following Gregorian dates: Several advantages do exist on this calendar, mainly related to"
"year being a common year starting on Tuesday (F) (e.g. 2001/02, 2012/13 and 2018/19), or from August to October the following year being a leap year starting on Saturday (BA) (e.g. 1999/2000 and 2027/28). The shortest period that occurs with a Friday the 13th is just one month, from February to March in a common year starting on Thursday (D) (e.g. 2009, 2015 and 2026). Each Gregorian 400-year cycle contains 146,097 days (with 97 leap days) or exactly 20,871 weeks. Therefore, each cycle contains the same pattern of days of the week and thus the same pattern of Fridays that"
"only one Friday the 13th; The only Friday the 13th in this common year occurs in June. Leap years starting on Tuesday share this characteristic. If the preceding year is a common year starting on Tuesday, then the year begins in ISO week 52; if the preceding year is a leap year starting on Monday, then the year begins in ISO week 53. In the (currently used) Gregorian calendar, alongside with Sunday, the fourteen types of year (seven common, seven leap) repeat in a 400-year cycle (20871 weeks). Forty-three common years per cycle or exactly 10.75% start on a Wednesday."
"awareness about automotive safety, this is possible because there is at least one F13 each year. The table is for the Gregorian calendar and Jan/Feb for leap years. Friday the 13th Friday the 13th is considered an unlucky day in Western superstition. It occurs when the 13th day of the month in the Gregorian calendar falls on a Friday, which happens at least once every year but can occur up to three times in the same year,for example in 2015, on 13 Feb, 13 March and 13 October. In 2017, it occurred twice, on 13 January and 13 October. In"
"May 2013. The pataphysical calendar is a variation of the Gregorian calendar. The ""Collège de 'Pataphysique"" created the calendar in 1949. The pataphysical era (E.P.) started on Jarry's birthday, 8 September 1873 vulg. When converting pataphysical dates to Gregorian dates, the appendage (vulg.) for ""vulgate"" (""common"") is added. The week starts on a Sunday. Every 1st, 8th, 15th and 22nd is a Sunday and every 13th day of a month falls on a Friday (see Friday the 13th). Each day is assigned a specific name or saint. For example, the 27 Haha (1 November vulg.) is called or the 14"
"13 BC Year 13 BC was either a common year starting on Friday, Saturday or Sunday or a leap year starting on Friday or Saturday (link will display the full calendar) of the Julian calendar (the sources differ, see leap year error for further information) and a leap year starting on Wednesday of the Proleptic Julian calendar. At the time, it was known as the Year of the Consulship of Nero and Varus (or, less frequently, year 741 ""Ab urbe condita""). The denomination 13 BC for this year has been used since the early medieval period, when the Anno Domini"
"(""I have lived"", implying death in the present), an omen of bad luck. In fact, in Italy, 13 is generally considered a lucky number. However, due to Americanization, young people consider Friday the 13th unlucky as well. The 2000 parody film ""Shriek If You Know What I Did Last Friday the Thirteenth"" was released in Italy with the title ""Shriek – Hai impegni per venerdì 17?"" (""""Shriek – Do You Have Something to Do on Friday the 17th?""""). Friday the 17th occurs on a month starting on Wednesday. According to the Stress Management Center and Phobia Institute in Asheville, North"
"16 March 17 March 22 March 23 March 26 March 30 April 6 April 8 April 13 April 19 April 20 April 21 April 27 April 30 May 4 May 11 May 14 May 17 May 18 May 21 May 25 May 31 June 1 June 8 June 14 June 15 June 18 June 21 June 22 June 28 June 29 July 6 July 7 July 12 July 13 July 15 July 20 July 23 July 25 July 27 July 29 August 3 August 17 August 24 August 31 September 7 September 14 September 21 September 23 September 28 October"
"Common year starting on Friday A common year starting on Friday is any non-leap year (i.e. a year with 365 days) that begins on Friday, 1 January, and ends on Friday, 31 December. Its dominical letter hence is C. The most recent year of such kind was 2010 and the next one will be 2021 in the Gregorian calendar, or, likewise, 2011 and 2022 in the obsolete Julian calendar. The century year, 2100, will also be a common year starting on Friday in the Gregorian calendar. See below for more. Any common year that starts on Wednesday, Friday or Saturday"
"at sunset on Friday and lasts until nightfall on Saturday. There is a Jewish custom to fast on the Friday of the week of Chukat. In Thailand, the color associated with Friday is blue (see Thai calendar). Friday Friday is the day of the week between Thursday and Saturday. In countries adopting the ""Monday-first"" convention it is the fifth day of the week. In countries that adopt the ""Sunday-first"" convention, it is the sixth day of the week. In some other countries, for example Saudi Arabia and the Maldives, Friday is the first day of the weekend, with Saturday the"
"September 14 May 19 September 18 September 19 January 7 January 28 February 27 March 1 April 10 May 30 August 30 November 21 December 3 January 1 January 30 February 27 February 28 March 4 March 20 March 23 March 24 March 27 April 1 April 26 May 2 May 15 May 31 June 21 July 14 August 25 September 12 October 19 November 24 January 26 February 12–16 March 20 June 30 July 20 July 25 August 2 August 8 September October 16 December 1 December 5 December 29 January 7 June 18 August 31 September 15 October"
"fixes each month at a specific number of weeks to facilitate comparisons from month to month and year to year. January always has exactly 4 weeks (Sunday through Saturday), February has 4 weeks, March has 5 weeks, etc. Note that this calendar will normally need to add a 53rd week to every 5th or 6th year, which might be added to December or might not be, depending on how the organization uses those dates. There exists an international standard way to do this (the ISO week). The ISO week starts on a Monday, and ends on a Sunday. Week 1"
"strengthen the superstition about Tuesday. In addition, in Greek the name of the day is Triti (""Τρίτη"") meaning the third (day of the week), adding weight to the superstition, since bad luck is said to ""come in threes"". Tuesday the 13th occurs in a month that begins on a Thursday. In Italian popular culture, Friday the 17th (and not the 13th) is considered a day of bad luck. The origin of this belief could be traced in the writing of number 17, in Roman numerals: XVII. By shuffling the digits of the number one can easily get the word VIXI"
"those with at least 29 days starting on Thursday, those with at least 30 days starting on Wednesday, and those with 31 days starting on Tuesday. For all years, 8 days have a fixed ISO week number (between 01 and 08) in January and February. And with the exception of leap years starting on Thursday, dates with fixed week numbers occur in all months of the year (for 1 day of each ISO week 01 to 52): During leap years starting on Thursday (i.e. the 13 years numbered 004, 032, 060, 088, 128, 156, 184, 224, 252, 280, 320, 348,"
"Common year starting on Tuesday A common year starting on Tuesday is any non-leap year (i.e. a year with 365 days) that begins on Tuesday, 1 January, and ends on Tuesday, 31 December. Its dominical letter hence is F. The most recent year of such kind was 2013 and the next one will be 2019 in the Gregorian calendar or, likewise, 2014 and 2025 in the obsolete Julian calendar, see below for more. Any common year that starts on Sunday, Monday or Tuesday has two Friday the 13ths. This common year contains two Friday the 13ths in September and December."
"calendar era became the prevalent method in Europe for naming years. <onlyinclude> </onlyinclude> 13 BC Year 13 BC was either a common year starting on Friday, Saturday or Sunday or a leap year starting on Friday or Saturday (link will display the full calendar) of the Julian calendar (the sources differ, see leap year error for further information) and a leap year starting on Wednesday of the Proleptic Julian calendar. At the time, it was known as the Year of the Consulship of Nero and Varus (or, less frequently, year 741 ""Ab urbe condita""). The denomination 13 BC for this"
"Leap year starting on Friday A leap year starting on Friday is any year with 366 days (i.e. it includes 29 February) that begins on Friday 1 January and ends on Saturday 31 December. Its dominical letters hence are CB, such as the years 1904, 1932, 1960, 1988, 2016, 2044, 2072, and 2112 in the Gregorian calendar or, likewise, 2000 and 2028 in the obsolete Julian calendar. Any leap year that starts on Tuesday, Friday or Saturday has only one Friday the 13th; The only Friday the 13th in this leap year occurs in May. Common years starting on Saturday"
"of Mercury"". It has the most letters out of all the Gregorian calendar days. Wednesday is in the middle of the common Western five-day workweek that starts on Monday and finishes on Friday. The name Wednesday continues Middle English ""Wednesdei"". Old English still had ""wōdnesdæg"", which would be continued as ""*Wodnesday"" (but Old Frisian has an attested ""wednesdei""). By the early 13th century, the ""i""-mutated form was introduced unetymologically. The name is a calque of the Latin ""dies Mercurii"" ""day of Mercury"", reflecting the fact that the Germanic god Woden (Wodanaz or Odin) during the Roman era was interpreted as"
"((year + 8) mod 28) + 1). Years 4, 15 and 26 of the cycle are common years beginning on Friday. 2017 is year 10 of the cycle. Approximately 10.71% of all years are common years beginning on Friday. Common year starting on Friday A common year starting on Friday is any non-leap year (i.e. a year with 365 days) that begins on Friday, 1 January, and ends on Friday, 31 December. Its dominical letter hence is C. The most recent year of such kind was 2010 and the next one will be 2021 in the Gregorian calendar, or, likewise,"
"XXIIX (28) for February, XXIX (29) for April, June and partly for August, XXXI (31) (partly) for May and October. Each day is marked with a letter from A-H, indicating the position of the day in the Roman nundinal cycle. The first day of each month is marked by the letter K, short for ""Kalendae"". The fifth day of January, February, April, June, August, September, November and December is marked with the letters NON, short for ""Nonae"". It is placed in the seventh day for the months of March, May, July, and October. The eighth day after the Nones of"
"August 13 August 14 August 20 August 22 August 23 August 24 August 26 August 27 August 28 August 29 August 30 August 31 September 1 September 2 September 3 September 4 September 5 September 7 September 8 September 9 September 10 September 11 September 12 September 13 September 14 September 15 September 16 September 17 September 18 September 21 September 22 September 26 September 27 September 28 September 30 October 2 October 3 October 4 October 5 October 6 October 7 October 8 October 9 October 10 October 11 October 12 October 14 October 17 October 19 October 20"
"the year end day in any month or as any day of the week is standard for a 13-month calendar. Of course the days of the week do not correlate with the days of the week named on the Gregorian calendar since the ""day out of time"" (25 July) is not assigned as being any day of the week. The 13 Moon calendar simply counts leap years as a ""0.0 Hunab Ku"" day – which is also no day of the week or month. Nor is it one of the 260 galactic signatures. This allows the mathematical system of the"
"Common year starting on Saturday A common year starting on Saturday is any non-leap year (i.e. a year with 365 days) that begins on Saturday, 1 January, and ends on Saturday, 31 December. Its dominical letter hence is B. The most recent year of such kind was 2011 and the next one will be 2022 in the Gregorian calendar or, likewise, 2017 and 2023 in the obsolete Julian calendar, see below for more. Any common year that starts on Wednesday, Friday or Saturday has only one Friday the 13th; The only Friday the 13th in this common year occurs in"
"Common year starting on Sunday A common year starting on Sunday is any non-leap year (i.e. a year with 365 days) that begins on Sunday, 1 January, and ends on Sunday, 31 December. Its dominical letter hence is A. The most recent year of such kind was 2017 and the next one will be 2023 in the Gregorian calendar, or, likewise, 2018 and 2029 in the obsolete Julian calendar, see below for more. Any common year that starts on Sunday, Monday or Tuesday has two Friday the 13ths. This common year contains two Friday the 13ths in January and October."
"or 7th, depending on the length of the month), the Ides (13th or 15th), and the Kalends (1st of the following month). The Ides occurred near the midpoint, on the 13th for most months, but on the 15th for March, May, July, and October. The Ides were supposed to be determined by the full moon, reflecting the lunar origin of the Roman calendar. On the earliest calendar, the Ides of March would have been the first full moon of the new year. The Ides of each month were sacred to Jupiter, the Romans' supreme deity. The Flamen Dialis, Jupiter's high"
"official rule) outdated and no longer valid, but many writers still follow it. In Shia Islam, 13 signifies the 13th day of the month of Rajab (the Lunar calendar), which is the birth of Imam Ali. 13 also is a total of 1 Prophet and 12 Imams in the Islamic School of Thought. However, in Sunni Islam, the number 13 bears no symbolic significance. The apparitions of the Virgin of Fátima in 1917 were claimed to occur on the 13th day of six consecutive months. In Catholic devotional practice, the number thirteen is also associated with Saint Anthony of Padua,"
"2 November 14 January February 6 March 7 March 25 May 5 June 3 July 17 August 1 October October 18 November 14 November 15 November 25 December 1 December 12 December 23 December 24 January 20 May 28 July 7 August 13 October 5 November 6 November 26 December 1 December 8 December 11 December 12 December 13 January 26 March 6 March 13 March 24 July 6–16 July 29 August September 27 September 30 October 5 November 7 November 9 January 25 January 27 March 14 March 15 March 16 March 20 March 21 March 23 March 31"
"May. Leap years starting on Friday share this characteristic. If the preceding year is a common year starting on Friday, then the year begins in ISO week 52; if the preceding year is a leap year starting on Thursday, then the year begins in ISO week 53. In the (currently used) Gregorian calendar, the fourteen types of year (seven common, seven leap) repeat in a 400-year cycle (20871 weeks). Forty-three common years per cycle or exactly 10.75% start on a Saturday. The 28-year sub-cycle will break at a century year which is not divisible by 400 (e.g. it broke at"